In four places in Tanakh, our text has an aleph with a dagesh: Gen 43:26, Lev 23:17, Job 33:21, and Ezra 8:18. What is the significance of this, and for the first two examples, how would you indicate its existence while laining?
Commentaries that I've seen:
Gen 43:26 -- Radak points out that it's there, but otherwise says nothing. Minchat Shai says to look in ספר הנקוד הגדול from רב אשי, but I don't know where to find that.
Lev 23:17 -- Ibn Ezra says he doesn't know what it means.
Job 33:21 -- Malbim comments that this is from the binyan Pual, that normally comes with a dagesh.
On all four, Minchat Shai mentions the phonomenon, but does not explain it, besides pointing to ערומים from Gen 2:25, where he says:
מצאתי להרמ״ה ז״ל בהקדמת ספרו שכתב זה לשונו כל אתא דקריא דגש באורייתא לו סמיך לה מקמא אתא דכתיבא ולא קריא בר מן חמשה תלת מנהון מלאים וא״ו ותרין מנהון מלאים יו״ד
and then lists עָרוּמִּים, תְּלוּנֹּתָם, תְּלוּנֹּת, and our two examples, וַיָּבִיאּוּ and תָּבִיאּו. I'm not sure of who he's quoting, and I'm having some trouble parsing the Aramaic, but he seems to be saying that the Vav and Yud male are causing a dagesh, but only in these five instances (in Torah). Can someone fully translate this passage, and help shed some light?
There is also the matter of the Reish with a dagesh, which occurs numerous times in Tanakh, but for which I don't have the time to currently look up commentaries. Thoughts? Related?